CVE-2026-109956NLTK through 3.10.3 Path Traversal via WekaClassifier Model Path

Descripción

NLTK through 3.10.3 contains a path traversal vulnerability in WekaClassifier that allows attackers to bypass nltk.pathsec containment by supplying unvalidated model paths. Attackers controlling the model_filename or model argument can make the weka JVM write files via -d or probe files via -l outside allowed data roots.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• GitHub Security Advisory (GHSA-j456-xh4h-cpf2) vendor-advisory
• VulnCheck Advisory: NLTK through 3.10.3 Path Traversal via WekaClassifier Model Path third-party-advisory